.at_link {
   font-family: Arial, Verdana, Helvetica, sans-serif;
   padding: 3px 0px;
}
#dropmenudiv {
   position: absolute;
   border: 1px solid #ccc;
   border-bottom-width: 0;
   font: normal 11px Arial, Verdana, Helvetica, sans-serif;
   line-height: 18px;
   z-index: 100;
   text-align:left;
}
#dropmenudiv a {
    width: 100%;
    display: block;
    text-indent: 3px;
    border-bottom: 1px solid #ccc;
    padding: 1px 0;
    text-decoration: none;
}
#dropmenudiv a:hover { /*hover background color*/
    background-color: #ddd;
}

div.idx_head_summ { display:block; }
div.idx_head_only { display:none; }